Read p. 18 #79

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Read p. 18 #80

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Read p. 18 #83Verbal

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Read p. 18 #84Verbal

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Do p.37 #29 & 30

Read p. 37 #31

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Read p. 37 #32

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When a wholesaler sold a certain product at $25 per unit, sales were 800 units per week. After a price increase of $5, the average number of units sold dropped to 775 per week.

a. Assume that the demand function is linear. Write an equation that gives the demand d (the number of units sold) in terms of the price p

b. Write an equation R (revenue earned) in terms of p

c. Find the price that will maximize the total revenue

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A real estate office handles 50 apartment units.When the rent is $720 per month, all units areoccupied. However, on the average, for each $40increase in rent, one unit becomes vacant. Each occupied unit requires an average of $48per month for service and repairs.

A. Write an equation that gives d (the demand for apartments) in terms of r, the rent charged.

B. Write an equation for P, the profit earned by the real estate office for these rentals.

C. What rent should be charged to obtain the maximum profit?

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yp. 40 #9